This report by David Canter, Dr Donna Youngs and Dr Laura Hammond of the International Research Centre for Investigative Psychology, The University of Huddersfield, pays particular attention to the evidence of Anthony Gauci.

David Canter & Donna Youngs: A ground-breaking textbook from the inventors of Investigative Psychology

Dr Ian Freckelton: "Canter and Youngs’ work is logical, well researched and referenced, readable and entertaining without for the most part descending into the titillating of the sensationalist. It should be essential reading for students and practitioners of forensic psychology, criminology, law enforcement and criminal law practice."